Grease trap maintenance is critical. Grease traps work by using gravity and simple physics to separate fats, oils and grease from wastewater. Wastewater enters the trap where it’s flow gets slowed down. As that water cools, the lighter grease floats to the top, while heavier, food, solids sink to the bottom, allowing the clarified water in the middle to flow out to the sewer system through a process of filtration. A good rule of thumb is to have your grease trap clean when it’s 25% full of greas

How To Clean Grease Trap On Plumbing Residential